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美國(guó)PARKER派克螺紋旋入式RK(B)系列單向閥可以方便地旋入螺紋孔中。派克RK和RB系列單向閥閥體的密封是通過(guò)118度錐角多形成的臺(tái)肩上的O形圈來(lái)實(shí)現(xiàn)的。閥體是由相互卷邊（PK）或壓合（RB）連接的兩部分組成的，并且在它們之間裝有彈簧和由耐磨軸承鋼經(jīng)淬火和拋光處理的錐體。同樣閥座也是經(jīng)過(guò)淬火和磨削處理。

派克螺紋旋入式RK(B)系列單向閥的常用型號(hào)如下：

RK-46214087    RK-46214089    RK-46214225     RK-46214226   RK-46214227

RK-46214228    RK-46214229    RK-46214230     RK-46214231   RK-46214232

RK-46214888    RK-46214898    RK-35037443     RK-35037444   RK-35037445

RK-35037446    RK-35037449    RK-35038071     RK-35038072   RK-35038074

RK-35038078    RK-35038107    RK-35038166     RK-35038168   RK-35038292

RK-35038167    RK-35037447    RK-46214527     RK-46214629   RK-46214569

RK-036-80367-0  RK-46214551   RK-036-86137-0  RK-46214419   RK-46214553

RK-46216858    RK-46216859    RK-46216875     RK-036-80371-0 RK-46214562

RK-036-80372-0 RK-036-86136-0  RK-35039034    RK-36030040    RK-36030050

RK-36030051    RK-36030053    RK-46214590     RK-46214937    RK-CE016-01

RK-CE016-04    RK-CE025-01    RK-CE025-08     RK-CE032-01    RK-CE032-04

RK-CE032-07    RK-CE040-01    RK-CE050-01     RK-CE050-04    RK-CE063-01

RK-CE063-04    RK-35036403    RK-46212676     RK-45036436    RK-25035442

RK-25036452    RK-45034671    RK-46213255     RK-46212463    RK-45036438

RK-46212956-U  RK-35036634    RK-P4E100V   RK-C18E32     RK-25036432

RK-TDA080EW09A2N    RK-TEA080EW09B2N    RK-35036417    RK-46215555

RK-TDA080EW09B2N    RK-TEA080EW09A2N    RK-TDA063EW09A2N

RK-TDA063EW09B2N    RK-TDA016EW09B2N    RK-TDA025EW09B2N

RK-TDA032EW09B2N    RK-TDA040EW09B2N    RK-TDA050EW09B2N

RK-TDA025EW09A2N    RK-TDA050EW09B2V    RK-TDA025EW09B2V

RK-TDA100EW09A2N    RK-46214130    RK-TEA063EW09B2N

RK-TEA063EW09A2N    RK-TDA016EW06B2V     RK-TEH100EL09B2N

RK-TEA050EW09B2N    RK-TEA100EW09B2N     RK-TDA040EW09A2N

RK-45036003      RK-46212411      RK-46212417     RK-TDA050EW09A2N

RK-TEA032EW09B2N    RK-TDA100EW09B2N     RK-TDA032EW09A2N

RK-25037939     RK-TDA016N       RK-TDA025N       RK-TDA032N

RK-TDA040N      RK-TDA050N       RK-35037081      RK-46214214

RK-TDA032EW09B2V    RK-TDA063N   RK-TDA080N       RK-TDA100N

RK-TEH063EL09B2N    RK-15036043   RK-25039225N    RK-TEA040EW09B2N

RK-TDA016EW09B2V    RK-35035702   RK-46212433     RK-CE040F04S00N

RK-TEH050EL09B2N    RK-TEA050EW09B2V  RK-CE040-04    RK-CE016-08

RK-CE040-07         RK-CE040-08    RK-S26-42489-0    RK-CE050-08

RK-25039224N        RK-25039228N   RK-S16-68998-5   RK-TDA040EW09B2V

RK-35039526N       RK-TEA050EW09A2N   RK-S16-68998-0   RK-S26-55909-0

RK-S16-82000-0     RK-46213280        RK-46216905    RK-TDA016EW09A2N

RK-TDA016EW06A2N    RK-TDA025EW09A2V    RK-35035564    RK-35039531N

RK-CE032-08       RK-CE063-07        RK-CE050-07     RK-TEA100EW09B2V

RK-25039572       RK-46213337       RK-ASEW001D10     RK-IS15

RK-D1DLB77        RK-46216246      RK-46214085        RK-46214086

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